Matt Damon films chilling ad for Jimmy Kimmel debut

Damon has been the butt of Kimmel's jokes for years and the host often ends his daily weeknight show by apologising to the movie star for running out of time to interview him.

But now the Bourne Identity star is set for his first official appearance on the programme as a guest - and he's promoting it with a grainy YouTube.com video.

The promo begins with clips of Kimmel brushing off Damon on his show and then cuts to a manic Matt talking into a computer camera in his basement. He swivels the camera to reveal Kimmel tied up and gagged.